Scouring sponge



FIG. 1 is a perspective view of showing the new design for a scouring sponge.

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side view thereof,

FIG. 5 is a right side view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a back elevation view thereof. 

CLAIM The ornamental design for a scouring sponge, as shown and described. 